Flood forecasting and early warning have long played an important role in disaster risk reduction. Accurate flood forecasting, effective early warning, and proper responses enabled by actionable risk information are key to reducing potential flood damages and disruptions to properties, assets, the natural environment, and the normal functioning of the society. Over the past decades, significant advances have been made in these areas, owing to the increased availability of data, computational resources, and digital technology. However, challenges remain in many aspects.

This special issue aims to solicit contributions from different disciplines in the broad field of flood forecasting, early warning, and risk communication to exchange new knowledge, recent advances, and best practices from the perspectives of researchers, industry, and government organizations. Specific topics of this special issue will cover, but are not limited to

• new and emerging flood forecasting methods and techniques for fluvial, pluvial, coastal, and groundwater flooding at various scales;
• uncertainties in flood forecasting and mitigating methods;
• flood forecasting and early warning under deep uncertainties;
• forecasting and warning of flood-related perils such as landslides and debris flow;
• advances in flood warning and risk communication;
• new methods, tools, and techniques for communicating flood risks;
• advances in risk evaluation;
• flood warning based on strategic and operational responses.

Theoretical, methodological, and applied research in the field is encouraged. Submissions for all manuscript types such as commentaries, review articles, and research papers are welcome.